mapped-databases set to [] on server restart if no initial value provided

[expediagroup]

mapped-databases set to [] on server restart if no initial value provided

[patduin]

Is this PREFIXED or MANUAL mode?
In MANUAL mode the semantics seem to be a bit different as that you always need to set a list of mapped-databases. We cannot do accept all (imagine the default database it will always clash)

From what I can tell an empty list or not setting the mapped-databases are handled the similarly in the code. The difference comes when you are using PREFIXED vs MANUAL.

[massdosage]

This is set in the the example server yaml file after it had been rewritten, so yes, it's in PREFIXED mode:

database-resolution: PREFIXED

and for reference here is the federation yaml:

primary-meta-store:

  access-control-type: READ_ONLY
  database-prefix: ''
  name: local
  remote-meta-store-uris: thrift://localhost:9083
federated-meta-stores:
- access-control-type: READ_ONLY
  database-prefix: dw_
  mapped-databases: []
  name: dw
  remote-meta-store-uris: thrift://XXX.internal:9083

[patduin]

what version of Waggle Dance?

[massdosage]

2018-06-07T19:58:28,902 INFO com.hotels.bdp.waggledance.WaggleDance:137 - Maven-ArtifactId=waggle-dance-core; Built-By=s-jenkinsrbac; Spring-Boot-Version=1.5.7.RELEASE; Manifest-Version=1.0; Maven-GroupId=com.hotels; Main-Class=org.springframework.boot.loader.JarLauncher; Spring-Boot-Classes=BOOT-INF/classes/; Start-Class=com.hotels.bdp.waggledance.WaggleDance; Build-DateTime=2018-05-22T08:16:35Z; Spring-Boot-Lib=BOOT-INF/lib/; Created-By=Apache Maven 3.3.9; Build-Jdk=1.7.0_80; Build-Version=2.3.5;

[patduin]

I've tested but having set to empty array mapped-databases: [] or not set at all is giving me same results (all dbs).

[massdosage]

OK, sounds like we can't reproduce this, I'll close the ticket.